Background Subtraction using gmm on single image
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clc
clear all
close all
[file, pathname] = uigetfile('D:\studies\FYP\original images.jpg','Load Image');
cd(pathname);
foregroundDetector = vision.ForegroundDetector('NumGaussians', 3, ...
'NumTrainingFrames', 50);
face_original = imread(file);
size_img = size(face_original);
imshow(face_original), title ('Original Image')
foreground = step(foregroundDetector, face_original);
figure; imshow(foreground); title('Foreground');
this code gives black screen.
2 Commenti
Image Analyst
il 31 Mag 2020
I guess it didn't find a face. But what do I know -- you didn't post your image.
Risposte (1)
Aakash Mehta
il 24 Giu 2020
ForegroundDetector method is used to detect the motion in the video. As you are applying it to a single image, it is considering the whole image as a background.
foreground = step(foregroundDetector, face_original);
Above line will give the foreground mask which is 2D matrix. It contains 0's and 1's. In your case it's giving all 0's as it is not able to detect any foreground. That's why when you are trying to display image you are getting black image.
1 Commento
Sarvath Sharma
il 17 Lug 2020
Modificato: Sarvath Sharma
il 17 Lug 2020
So how would one use the foregroundDetector and the step function to clear out and determine the 1s and 0s for the foreground mask? Would we have to do a comparison between two images and pass that in as a parameter to the step fucntion?
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